On Wed, Jan 22, 2025 at 07:10:00PM +0000, Ihor Solodrai wrote: > > On Tuesday, January 21st, 2025 at 5:40 PM, Tejun Heo <tj@xxxxxxxxxx> wrote: > > > > > > > Hello, sorry about the delay. > > > > On Wed, Jan 15, 2025 at 11:50:37PM +0000, Ihor Solodrai wrote: > > ... > > > > > 2025-01-15T23:28:55.8238375Z [ 5.334631] sched_ext: BPF scheduler "dsp_local_on" disabled (runtime error) > > > 2025-01-15T23:28:55.8243034Z [ 5.335420] sched_ext: dsp_local_on: SCX_DSQ_LOCAL[_ON] verdict target cpu 1 not allowed for kworker/u8:1[33] > > > > > > That's a head scratcher. It's a single node 2 cpu instance and all unbound > > kworkers should be allowed on all CPUs. I'll update the test to test the > > actual cpumask but can you see whether this failure is consistent or flaky? > > I re-ran all the jobs, and all sched_ext jobs have failed (3/3). > Previous time only 1 of 3 runs failed. > > https://github.com/kernel-patches/vmtest/actions/runs/12798804552/job/36016405680 Oh I see what happens, SCX_DSQ_LOCAL_ON is (incorrectly) resolved to 0. More exactly, none of the enum values are being resolved correctly, likely due to the CO:RE enum refactoring. There’s probably something broken in tools/testing/selftests/sched_ext/Makefile, I’ll take a look. Thanks, -Andrea
